The X5 may have been the first BMW crossover on the market when it arrived in 2000, opening the door to more high-riding Bavarians to follow, but it's been replaced twice over now. The X3 is on its second generation, and with the X1 having been introduced in 2009 and the X4 soon to hit showrooms, that makes the X6 – introduced in 2008 – the oldest crossover in the BMW lineup. But it won't be for much longer.